Initial commit of KiCad designs to the git repo

PDA and FDA designs including kicad schematic, pcb, BOM, and gerbers
have been committed to the git repo.

S/N005 phase-noise measurement at 10 MHz

added by Anders Wallin on 2017-08-18 06:38:16.076162

Phase-noise measurements show a flat spur-free phase-noise and AM-noise
floor of -162 dBc/Hz at >100 Hz offset from a 10 MHz carrier.
Measurements at 5 MHz to follow.
See wiki for results.

S/N005 assembled and tested

added by Anders Wallin on 2017-08-16 13:29:13.497624

Amplifier S/N 005 was assembled and tested, housing PDA2017.07 and
FDA2017.07 boards.
Initial phase-noise tests show good performance, similar to the previous
generation of the board.
The new PDA2017.07 design using IDT5PB1108 has very fast rise-time (to
be measured), possibly a quite low output-impedance (to be fixed?) and a
preliminary channel-to-channel output skew of max 250 ps.